Home / 89,919.23-124,012.35-54,102.54

Finding the Fourth Proportional to 89,919.23, 124,012.35 and 54,102.54

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Solution

The fourth proportional to 89,919.23, 124,012.35 and 54,102.54 is: 74,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.23 : 124,012.35 = 54,102.54 : x
  2. Step 2: Convert to fraction form
    89,919.23/124,012.35 = 54,102.54/x
  3. Step 3: Cross multiply
    89,919.23x = 124,012.35 × 54,102.54
  4. Step 4: Simplify right side
    89,919.23x = 6,709,383,591.42
  5. Step 5: Solve for x
    x = 6,709,383,591.42/89,919.23
  6. Step 6: Final answer
    x = 74,615.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.